Copying four hundred gigabytes should not mean staring at a dialog. Long work becomes a job on a board with progress, a transfer rate and an estimate, and you can pause it, resume it, cancel it or shove it up the queue. Close the dialog; the work carries on.
Ships
Every running job has a state, a progress bar, a rate and an ETA, plus Pause, Resume and Cancel.
Reorder the queue by dragging.
Cap how many jobs run at once, and how much bandwidth they may use.
It does not stop when the window does. The work runs in a shared background service rather than inside the window, which is why closing the window does not stop it.
Three catalogue ids, one page: Basic comes with every paid bundle, Chaos comes with every bundle including free Minimal, and Enhanced is Everything's alone — and is coming soon.
An add-on is not sold on its own — a bundle is, and holding the same add-on through two bundles is never charged twice. See the bundles.
Nothing. The board is there when the app opens.
Download File Manager, then pick the bundle that grants it.